10/28/2015 07:15 EDT | Updated 10/28/2016 05:12 EDT

Rain Starts Early As Fall Storm Rolls Into The GTA

The storm could deliver between 40-60 millimetres of rainfall today.

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Concentric rings of ripples on a puddle

UPDATE: 9:45 a.m.: As many as 10 pedestrians were hit by vehicles on Toronto streets before 8:30 a.m. as heavy rain and dark skies combined for a tricky morning commute. 

Police say many of the pedestrian strikes were minor in nature, ranging from bumps and bruises up to broken bones.

The rain has started to fall in downtown Toronto, part of a fall storm that's set to slam the GTA this morning with the heaviest rains expected to hit during the morning rush hour.

City sidewalks were already riddled with puddles by 5 a.m. Wednesday as the rain started falling before 4 a.m. A rainfall warning is in effect for Toronto.

The storm — driven by the remnants of Hurricane Patricia merging with a clipper system coming from the west — could deliver between 40-60 millimetres of rainfall today.

Although the rain is already falling in Toronto, CBC meteorologist Jay Scotland says it's expected to become heavier during commuting hours, and then keep falling throughout the day. The rain could possibly affect this afternoon's commute as well.

Check out ourliveblog for updates on how the fall storm is affecting traffic in Toronto.

Strong wind gusts between 40-70 km/h are also possible during the storm and could cause some tree damage, especially closer to the lakeshore where they'll be stronger. 

One upside? Temperatures will rise to a high of 17 C.